The main comment themes I found were:

• Error messages: still a problem
• Spec: promising, but how to adopt fully unclear
• Docs: still bad, but getting a little better
• Startup time: always been a problem, becoming more pressing with serverless computing
• Marketing/adoption: Clojure still perceived as niche/unknown by non-technical folk
• Language: some nice ideas for improvement
• Language Development Process: not changing, still an issue
• Community: mostly good, but elitist attitudes are a turnoff, and there is a growing perception CLJ is shrinking
• Libraries: more guidance needed on how to put them together
• Other targets: a little interest in targeting non JS/JVM targets
• Typing: less than in previous years, perhaps people are finding spec meets their needs?
• ClojureScript: improving fast, tooling still tricky, NPM integration still tricky
• Tooling: still hard to put all the pieces together
• Compliments: “Best. Language. Ever.”

Lots of room for improvement here, but I still love working with Clojure and am thankful that I get to do so.